What does the slice() function do in Python?

Question

First of all, I\'d like to clarify the question: it\'s about the slice() function, not slices of lists or strings like a[5:4:3].

The docs menti

Answer 1

a[x:y:z] gives the same result as a[slice(x, y, z)]. One of the advantages of a slice object is that it can be stored and retrieved later as a single object instead of storing x, y and z.

It is often used to let the user define their own slice that can later be applied on data, without the need of dealing with many different cases.